A West country hotel has just completed the installation of multiple Rinnai blends ready 20% continuous flow water heaters and bespoke Rinnai storage vessels. The Hybrid instantaneous and storage system has been designed to optimise gas usage and satisfy peak demand without wasteful storage oversizing.

For sizing support, capital, operational expenditure and carbon modelling, contact the Rinnai design team today

The Hydrogen blends ready and BioLPG ready water heaters offer over 2000 lph (litre per hour) of temperature accurate hot water, rapidly replenishing the bespoke hot water vessel to ensure user comfort and satisfaction.

The Rinnai N Series continuous flow hot water heater range offers a more compact, enhanced combustion design that allows for easier installation, superior operational performance as well as ease of serviceability.

The Rinnai Sensei N Series is the first ever continuous flow hot water heating unit manufactured with stainless steel heat exchangers to be available in the UK – this gives an extended working life at optimum performance to each of the four models in the range. Added to this are the market leading extended warranties of up to 12 years in commercial environments, which accompany the hydrogen Blend-ready and Bio-LPG ready instantaneous water heaters.

The four N Series models are:

  • N1600i giving 954 litres per hour (at 50 degrees rise)
  • N1600e (external) also giving 954 litres per hour (at 50 degrees rise).
  • N1300i giving 775 litres per hour and
  • N1300e also giving 775 litres per hours of temperature controlled hot water at 50 degrees.

All the range is also low-NOx (Less than 26ppm meaning they gain additional points under BREEAM) and the futureproofed continuous flow water heater utilises Rinnai’s patented advanced burner technology with a 13-1 turn down ratio – the largest on the market combined with 96% efficiency rating. Integral controls on the units enable the water heater to achieve high efficiencies because of advanced burner control and high modulation ranges.

This wide range of modulation means that energy usage is completely optimised as the water heater through smart inbuilt controls will only heat the water to the temperature required thus preserving energy.

Rinnai also offers a full range of unvented and indirect storage cylinders – with capacities from 80 -200L.

For more information on Rinnai heating and hot water solutions visit https://www.rinnai-uk.co.uk/

Picture and story courtesy of Grayson Price


Rinnai’s H3 range of products include domestic and commercial heat pumps that offer immediate property decarbonisation. Rinnai is determined to provide UK customers with cost effective low carbon solutions towards domestic and commercial hot water and building heating provision.